Sergiu Duda from AMIQ has put a lot of effort into creating a high quality article on the non-trivial topics of High Level Synthesis and Deep Learning. The later, is not found in the everyday terminology of a verification engineer. Deep learning is just a flavour of a bigger part called Machine Learning which in its turn is part of the bigger, Artificial Intelligence.
I do think you will get more meaning out of this topic after spending your time on reading his article: How to Implement a Convolutional Neural Network Using High Level Synthesis
Since 2018 is coming to an end and we are days apart from Christmas, I take the chance and wish you a Merry Christmas and hope that the new year brings joy and happiness to all of us.
Enjoy the holiday time!